primevue-mirror/src/AppCodeHighlight.js

import Prism from 'prismjs';

const CodeHighlight = {
    beforeMount(el, binding) {
        const modifiers = binding.modifiers;
        const value = binding.value;

        if (modifiers.script || value === 'script')
            el.className = 'language-javascript';
        else if (modifiers.css || value === 'css')
            el.className = 'language-css';
        else
            el.className = 'language-markup';

        Prism.highlightElement(el.children[0]);
    }
};

export default CodeHighlight;